EMC Proven Professional – XtremIO Solutions Expert — Question 2

Performance analysis on VMAX3 FE ports have shown that a large number of QFULL responses were returned to their best performing hosts. However, other hosts suffered from high response times.
What needs to be configured in order to lower the high response times?

Answer options

• A. Decrease the queue depth of the poor performing hosts
• B. Increase the queue depth for all hosts
• C. Set similar queue depths for all hosts
• D. Increase the queue depth of the best performing hosts

Correct answer: A

Explanation

Reducing the queue depth of the poorly performing hosts allows for better management of their workload, preventing them from being overwhelmed. Increasing the queue depth for all hosts or setting them uniformly may not address the specific issues of the underperformers. Similarly, boosting the queue depth of the best performing hosts could exacerbate QFULL responses, leading to further delays.